Seiko Cal. 5687 - 964

This Spring Drive model from 1982 features a 45mm Titanium case. With its 21mm lug width and 13.8mm profile, it sits comfortably on most wrists. [seikata-wm-91908969ec04]

Also known as: Helmet

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

45mm

Case Thickness

13.8mm

Lug Width

21mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

180m

Dial Color

Navy

Jewels

23j

Frequency

21,600 bph

Power Reserve

60 hours

Year

1982

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